Continuous casting slabs or primary rolling slabs are used as raw materials, heated by a stepping furnace, and dephosphorized by high-pressure water, and then enter the roughing mill. The rough rolling material is cut through the head, tail, and then into the finishing mill, and computer-controlled rolling is carried out. After the final rolling, it will go through laminar cooling (computer-controlled cooling rate) and take-up by the coiler to become a straight hair coil. The head and tail of straight hair curls tend to be tongue-shaped and fish-tailed, with poor thickness and width accuracy, and often have wavy, folded, tower-shaped and other defects on the edges. The coil is heavier and the inner diameter of the Steel Coil is 760mm. (Generally used in the pipe-making industry.) After straightening the hair through the cutting head, tail cutting, trimming and multi-pass straightening and smoothing finishing lines, and then cutting or re-rolling, it becomes: hot rolling Steel plates, flat hot rolled steel coils, slitting tapes and other products. If the hot-rolled finishing coil is pickled to remove scale and coated with oil, it will become a hot-rolled pickled coil.
Carbon Steel Coil,Hrc Hot Rolled Coil,Cold Rolled Coil,Astm Carbon Steel Coil Shandong Guanzhou Iron and Steel Group Co., Ltd , https://www.shansteelsupply.com Exploration stage Metallurgical test purpose Research on ore material composition Ore characteristics Degree of test Metallurgical sample requirements Census Assess whether ore can be used as an industrial raw material initial research Easy dressing stone Analogy evaluation, no experiment General ore Optional (melting) test The optional test sample weighs approximately 50-500 kg. Difficult to choose ore Optional (melting) test and laboratory process test Detailed investigation Evaluate whether the deposit has industrial value. Detailed study Easy ore Optional (melting) test The laboratory process combination weighs 300-1000 kg. The laboratory expanded the continuous test sample 5-25t. General ore Laboratory process test Difficult to choose ore Laboratory process test and laboratory extended continuous test exploration Provide mine development feasibility study and design basis In-depth study Easy ore Laboratory process test The sample collection, test conditions and test contents are jointly determined by the geological, experimental and design units. General ore Laboratory expansion of continuous trials Difficult to choose ore Semi-industrial test